<?xml version='1.0' encoding='UTF-8'?><codeBook xmlns="ddi:codebook:2_5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="ddi:codebook:2_5 https://ddialliance.org/Specification/DDI-Codebook/2.5/XMLSchema/codebook.xsd" version="2.5"><docDscr><citation><titlStmt><titl>2023 ASU Polytechnic Arboretum Biodiversity and long-term soil carbon sequestration</titl><IDNo agency="DOI">doi:10.48349/ASU/UGOBNI</IDNo></titlStmt><distStmt><distrbtr source="archive">ASU Library Research Data Repository</distrbtr><distDate>2023-11-22</distDate></distStmt><verStmt source="archive"><version date="2023-11-22" type="RELEASED">1</version></verStmt><biblCit>Sagers, Cynthia; Huck, Margaret; Ries, Jonathan; Page, Sophia, 2023, "2023 ASU Polytechnic Arboretum Biodiversity and long-term soil carbon sequestration", https://doi.org/10.48349/ASU/UGOBNI, ASU Library Research Data Repository, V1, UNF:6:DGWJh2yIWLu8m33NWiPd5g== [fileUNF]</biblCit></citation></docDscr><stdyDscr><citation><titlStmt><titl>2023 ASU Polytechnic Arboretum Biodiversity and long-term soil carbon sequestration</titl><IDNo agency="DOI">doi:10.48349/ASU/UGOBNI</IDNo></titlStmt><rspStmt><AuthEnty affiliation="Arizona State University">Sagers, Cynthia</AuthEnty><AuthEnty affiliation="Arizona State University">Huck, Margaret</AuthEnty><AuthEnty affiliation="Arizona State University">Ries, Jonathan</AuthEnty><AuthEnty affiliation="Arizona State University">Page, Sophia</AuthEnty></rspStmt><prodStmt><producer affiliation="Arizona State University" abbr="CISA">College of Integrative Sciences and Arts</producer><prodPlac>Arizona State University Desert Arboretum at Polytechnic Campus</prodPlac></prodStmt><distStmt><distrbtr source="archive">ASU Library Research Data Repository</distrbtr><contact affiliation="Arizona State University" email="Cynthia.Sagers@asu.edu">Sagers, Cynthia</contact><depositr>Huck, Margaret</depositr><depDate>2023-05-10</depDate></distStmt><holdings URI="https://doi.org/10.48349/ASU/UGOBNI"/></citation><stdyInfo><subject><keyword xml:lang="en">Earth and Environmental Sciences</keyword><keyword vocab="LCSH" vocabURI="http://id.loc.gov/authorities/subjects/sh85006465">Arboretums</keyword><keyword vocab="LCSH" vocabURI="http://id.loc.gov/authorities/subjects/sh2010010939">Soils--Carbon content--United States</keyword><keyword vocab="LCSH" vocabURI="http://id.loc.gov/authorities/subjects/sh95005769">Carbon sequestration</keyword></subject><abstract date="2023-11-22">&lt;p>Soil carbon content measurements dataset from 16 long-term research plots at the ASU Polytechnic Arboretum. As part of Cynthia Sagers's Biology 182 class, measurements are taken annually for ten years. These measurements occurred between February 16th and 17th, 2023.  These data were collected as part of a general lab exercise with all 148 students participating. Only data from lab sections for which C. Sagers was present are included. Outlier values (>4.0%) were dropped when calculating the mean. &lt;/p>

&lt;p>Funded by the ASU Sustainability Initiatives Revolving Fund (SIRF), which invests in projects that foster and enable sustainability efforts and provide an economic return on investment. This project seeks to beautify the botanical walk while working towards ASU’s sustainability and carbon neutrality goals. &lt;/p>

File List: &lt;br>
&lt;ol>&lt;li>[Arboretum Soils Data.tab] Contains results from Year 1 of arboretum soil sample processing.&lt;/li>
&lt;li>[ABS 550 Soils Methods.docx] Methods provided to BIO 182 students for soil processing.&lt;/li>
&lt;li>Arboretum_plots.pdf] Map of arboretum plot boundaries.&lt;/li>&lt;/ol></abstract><sumDscr><collDate cycle="P1" event="start" date="2023-02-16">2023-02-16</collDate><collDate cycle="P1" event="end" date="2023-02-17">2023-02-17</collDate><dataKind>soil samples</dataKind></sumDscr></stdyInfo><method><dataColl><sources/></dataColl><anlyInfo/></method><dataAccs><setAvail/><useStmt/></dataAccs><othrStdyMat/></stdyDscr><fileDscr ID="f32580" URI="https://dataverse.asu.edu/api/access/datafile/32580"><fileTxt><fileName>Arboretum Soils Data.tab</fileName><dimensns><caseQnty>997</caseQnty><varQnty>9</varQnty></dimensns><fileType>text/tab-separated-values</fileType></fileTxt><notes level="file" type="VDC:UNF" subject="Universal Numeric Fingerprint">UNF:6:DGWJh2yIWLu8m33NWiPd5g==</notes></fileDscr><dataDscr><var ID="v39043" name="Plotnumber" intrvl="contin"><location fileid="f32580"/><labl level="variable">Plotnumber</labl><sumStat type="max">16.0</sumStat><sumStat 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Methods provided to BIO 182 students for soil processing. Includes collection methods for Soil Prep, Soil pH, and Organic Matter Content: Loss on Ignition</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/vnd.openxmlformats-officedocument.wordprocessingml.document</notes></otherMat><otherMat ID="f32576" URI="https://dataverse.asu.edu/api/access/datafile/32576" level="datafile"><labl>Arboretum_plots.pdf</labl><txt>Map of arboretum plot boundaries. Photograph with sixteen plot markers.</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/pdf</notes></otherMat><otherMat ID="f32582" URI="https://dataverse.asu.edu/api/access/datafile/32582" level="datafile"><labl>SAGERS_HUCK_DATASET_README.txt</labl><txt>General and methodological dataset information. Includes the list of spreadsheet variable names and descriptions.</txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">text/plain</notes></otherMat></codeBook>